參數(shù)資料
型號(hào)： LUCL8560AU-D
英文描述： Low-Power SLIC with Ringing
中文描述： 低功耗振鈴用戶(hù)接口
文件頁(yè)數(shù)： 7/46頁(yè)
文件大?。?/td> 842K
代理商： LUCL8560AU-D
Lucent Technologies Inc.
7
Data Sheet
April 2000
L8560 Low-Power SLIC with Ringing
Pin Information
(continued)
Table 2. Pin Descriptions
32-Pin 44-Pin Symbol
9
1
Type
O
Description
DCOUT
dc Output Voltage.
This output is a voltage that is directly proportional to the
absolute value of the differential tip/ring current.
Current-Limit Program Input.
A resistor to DCOUT sets the dc current limit of
the device.
Filter Capacitor 2.
Connect a 0.1
μ
F capacitor from this pin to AGND.
Filter Capacitor 1.
Connect a 0.47
μ
F capacitor from this pin to pin CF2.
Summing Node.
The inverting input of the uncommitted operational amplifier.
A resistor or network to XMT sets the gain (44-pin PLCC only).
Transmit ac Output Voltage.
The output of the uncommitted operational
amplifier (44-pin PLCC only).
Ring Trip Sense Negative.
Connect this pin to the ringing generator signal
through a high-value resistor.
Ring Trip Sense Positive.
Connect this pin to the ring relay and the ringer
series resistor through a high-value resistor.
No Connection.
May be used as a tie point.
Analog Signal Ground.
No Connection.
May be used as a tie point.
5 V Power Supply.
Battery Supply.
Negative high-voltage battery, higher in magnitude than V
BAT2
.
Auxiliary Battery Supply.
Negative high-voltage battery, lower in magnitude
than V
BAT1
, used to reduce power dissipation on short loops.
Battery Ground.
Ground return for the battery supply.
Ring Ground Detect.
When high, this open-collector output indicates the pres-
ence of a ring ground. To use, connect a 100 k
resistor to V
CC
.
Common-Mode Current Sense.
To program ring ground sense threshold,
connect a resistor to V
CC
and connect a capacitor to AGND to filter 50/60 Hz. If
unused, the pin should be connected to ground.
Battery Switch Slowdown.
Connect a 0.22
μ
F capacitor to pin BS1.
Battery Switch Slowdown.
Connect a 0.22
μ
F capacitor to pin BS2. Also, con-
nect a 0.1 μF capacitor in series with a 100
resistor from BS1 to V
BAT1
for sta-
bility.
No Connection.
May be used as a tie point.
No Connection.
May be used as a tie point.
Protected Tip.
The output of the tip driver amplifier and input to loop sensing.
Connect to loop through overvoltage protection.
Protected Ring.
The output of the ring driver amplifier and input to loop sens-
ing circuitry. Connect to loop through overvoltage protection.
10
2
I
PROG
I
11
12
—
3
4
5
CF2
CF1
SN
—
—
I
—
6
XMT
O
13
7
RTSN
I
14
8
RTSP
I
—
15
—
16
17
18
9
10
11
12
13
14
NC
—
—
—
—
—
—
AGND
NC
V
CC
V
BAT1
V
BAT2
19
20
15
16
BGND
RGDET
—
O
21
17
ICM
I
22
23
18
19
BS2
BS1
—
—
—
—
24
20
21
22
NC
NC
PT
—
—
I/O
25
23
PR
I/O
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